We are professional Incoloy 800h 800 H UNS N08810 1.4958 Alloy 800H X5NiCrAlTi31-20 nickel alloy tube bundles Tubing Bundles For shell tube Heat exchanger Boiler condensors heaters coolers evaporators factory from china
tube bundle heat exchanger with baffles is disclosed wherein a tube bundle is housed within an inner casing which is acted upon from both the inside and the outside by a heating medium
A multiple tube bundle heat exchanger includes axially opposite tube plates, a housing, and a plurality of tube bundles disposed between the tube plates. Each of the tube bundles is an independent tube bundle subassembly forming an integral unit having at least one heat exchanger tube with two axial tube ends.
Chemical composition % of steel X5NiCrAlTi31-20 (1.4958): EN 10302-2008
| C | Si | Mn | Ni | P | S | Cr | Nb | Ti | Al | Cu |
| 0.03 - 0.08 | max 0.7 | max 1.5 | 30 - 32.5 | max 0.015 | max 0.01 | 19 - 22 | max 0.1 | 0.2 - 0.5 | 0.2 - 0.5 | max 0.5 |
Mechanical properties of steel X5NiCrAlTi31-20 (1.4958)
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| Rm - Tensile strength (MPa) (+A) | 500-750 |
|
| Rp0.2 0.2% proof strength (MPa) (+A) | 170 |
|
| KV - Impact energy (J) transverse, (+A) | +20°
80 |
|
| KV - Impact energy (J) longitud., (+A) | +20°
120 |
|
| A - Min. elongation at fracture (%) (+A) | 30 |
|
| A - Min. elongation at fracture (%) (+AT) | 30-35 |
Properties of steel X5NiCrAlTi31-20 (1.4958)
Resistance to intergranular corrosion: in the delivery condition - yes; in the sensitized condition - no
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